isthmus

isthmus

(ĭs`məs), narrow neck of land connecting two larger land areas. Since it commands the only land route between two large areas and is on two seas, an isthmus has great strategical and commercial importance and is a favorable situation for a city. In modern times many isthmuses have been cut through by canals to eliminate the necessity of land transport. The most important isthmuses are the Isthmus of Panama, connecting Central and South America, and the Isthmus of Suez, joining Asia and Africa. Canals were dug through both of these. The Isthmus of Corinth between the Morea peninsula and central Greece also has a canal.

Isthmus

a relatively narrow strip of land that connects larger land areas, such as two continents (Isthmus of Suez, Isthmus of Panama) or a peninsula and the mainland (Perekop Isthmus). Some isthmuses, such as the Karelian Isthmus, separate two bodies of water.

isthmus

[′is·məs]

(biology)

A passage or constricted part connecting two parts of an organ.

(geography)

A narrow strip of land having water on both sides and connecting two large land masses.

The Isthmus of Tehuantepec has long been viewed as a preferred location for a shipping corridor to connect the Pacific and Atlantic oceans, but the only major development in the area in recent years has centered on construction of wind power farms (SourceMex, Oct.

The isthmus position index (IPI), the cortico-medullary index (CMI) and the canal flare index (CFI) are the most useful bone indices to evaluate objectively proximal femoral geometry in respect to THA (Abadie et al.

through the aorta and right ventricle), it is usually difficult to obtain good catheter stability on the isthmus especially when a significant TV insufficiency is present, which is common in patients after Senning operation.

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